外文翻譯--納米結(jié)構(gòu)_bi2s3的制備及其發(fā)光特性

1、<p><b>　　中文2890字</b></p><p>　　Preparation of Nanostructures and Photoluminescence Bi2S3</p><p>　　ZHANG Weixin，QIU Mo，ZHANG Junjun，YANG Zeheng，CHEN Min</p><p>　

2、　(School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China )</p><p>　　Abstract: Bismuth

3、nitrate and sodium sulfide as raw material, two-step hydrothermal method was successfully prepared at 100℃ Bi2S3 orthorhombic micro ring; Youyi bismuth nitrate and thiourea as the raw material, the use of step hydrotherm

4、al synthesized at 150℃ with Orthorhombic's Bi2S3 nanorods. Respectively, X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy and fluorescence spectrometry and other means

5、of final product testing phase, morphology and</p><p>　　Key words: bismuth sulfide; hydrothermal method; nanostructure; photoluminescence</p><p>　　The performance of nano-materials depends not o

6、nly on its own structure and composition, but also the size and shape and materials are closely related, and thus the size of nano-materials, structure and morphology of control synthesis to optimize material properties,

7、 not only has important Theoretical significance but also broaden the application areas of nano-materials, which has become the field of synthetic chemistry and materials research focus of a front, causing researchers [1

8、] wide intere</p><p>　　The vulcanized bismuth(Bi2S3) is a kind of important semiconductor material, its band gap is a 1.2~1.7 evs, give or get an electric shock in the thermal, optoelectronics and electroche

9、mistry[3 – 5] keep aspects like hydrogen,etc to have potential application worth.In recent years, Na rice the composition of the structure vulcanized bismuth caused the extensive concern of the researcher. Currently, at

10、Na rice structure the vulcanized bismuth contain a lot of wires that report, mainly have a Na ri</p><p>　　The experiment takes the nitric acid bismuth and the vulcanized sodium as raw material, under the sis

11、tuation that didn't make use of any mold plate, adopt two water thermal composition law, successfully made vulcanized bismuth micron ring.Inquired into the forming mechanism of the vulcanized bismuth micron ring.Rice

12、 for carrying on a compare with the vulcanized bismuth micron ring gaining in the structure, performance, and then adopting hot legal system of one-step water to have vulcanized bismu</p><p><b>　　1. Te

13、st</b></p><p>　　1.1 The preparation of sample</p><p>　　The raw material that experiment uses for the vulcanized sodium, have no water ether, nitric acid bismuth, sulfur Mao, 16 alkyl three

14、 A radicle bromines to turn An and sulfuric acid.Above the trying an agent all tries an agent for the analysis purely domestic chemistry, the experiment is used water as distilled water.</p><p>　　Two water t

15、hermal law makes the step of Bi2S3 micron ring as follows:</p><p>　　Square one water is hot:Call to take a 0.05 gs 16 alkyls three A radicle bromines turn An(cetyl trimethyl ammonium bromide, CTAB) to put in

16、to a 150 mL the beaker and join 40 mL distilled water, then put beaker on the magnetic force stirrer constantly the rabbling make CTAB resolve full.Call again to take the 0.2 g nitric acid bismuth to put to go into beake

17、r, go on to mix blend certain time.Then hang a muddy liquid of income to transfer an inner lining the 50 mL high pressure pot gathering four </p><p>　　The second treads water thermal:Will up gain a forerunne

18、r thing to put to go into prosperous have a 40 mL of in the beaker of distilled water, then put the beaker to constantly mix blend on the magnetic force stirrer, again use to move a liquid tube to move to take a little a

19、mount solution concentration to go into beaker for the 0.6 mol/L vulcanized sodium drop and go on to mix blend certain time.Hang a muddy liquid of income to transfer an inner lining the 50 mL high pressure pot gathering

20、four</p><p>　　Sparse sulfuric acid dissolution:Will up gain sediments to put to go into prosperous have a 20 mL of concentration for the beaker of 2 mol/L sparse sulfuric acid solution, the indoor temperatur

21、e stat after placing about the 8 hs uses distilled water, have no water ether wash away dirt sediments for many times and dry in 60℃ it, then get Bi2S3 micron ring.</p><p>　　The one-step water thermal law ma

22、kes the step of the rod of the Bi2 S3 Na rice as follows:Call to take the 0.1 g nitric acid bismuth and 0.2 g sulfur Mao to put into a 150 mL the beaker and join 40 mL distilled water, then put beaker on the magnetic for

23、ce stirrer constantly rabbling, receive black to hang a muddy liquid.Hang a muddy liquid of this black to take out after transfering to the apposition in the 50 mL high pressure pot in the constant temperature 14h in 150

24、℃ ovens, natural cooling.Us</p><p>　　1.2 Outcome token</p><p>　　Use D/max –xrd type the X shoot wire Yan to shoot(X-ray diffraction, XRD) instrument to carry on thing phase analysis to the samp

25、le.Take Cu K α as to radiate a source, λ =0.15418 nms, take care of the voltage as 40 kvs, take care of the current as 100 nms, scan range in 10 °~70 °.Use the accelerating voltage as JEOL of the 10 kvs 7500 B

26、type the field firing Hitachi of scanning the electric mirror(field-emission scan-ning electron microscopy, FESEM) and the accelerating voltage 200 kvs –800 deep</p><p>　　2. Result and discussion</p>

27、<p>　　2.1 XRD of outcome is analytical</p><p>　　Figure 1 is two water thermal law and one-step water thermal law income outcome of XRD table.Figure 1 amid of table wire 1 and table wire 2 difference be

28、thermal for two water law and one-step water thermal law income outcome of XRD table.All can the beacon change into the quadrature phase Bi2S3.(JCPDF, No.06–0333)The reaction temperature of two water thermal law responds

29、 for 100℃ , one-step water thermal law carrying on under 150℃ .From figure 1 amid can discover:One-step water thermal law's ga</p><p>　　Fig.1 X-ray diffraction (XRD) patterns of the products prepared vi

30、a the two-step hydrothermal method and the one-step hydrothermal method </p><p>　　2.2 The Bi2 S3 micron annular becomes mechanism analysis</p><p>　　Forming mechanism of by way of to Bi2S3 micr

31、on ring progress quest, made use of FESEM and TEM to observe square one water thermal system of the facial look and structure of the forerunner thing.Figure 2 is the FESEM and TEM photograph of Bi2S3 micron ring forerunn

32、er thing.From the figure 2 as it is thus clear that:Forerunner thing from a great deal of biscuit-like in shape circle slab composition, it unipole the diameter of the biscuit-like in shape circle slab is about 1~2 μ ms,

33、 thickness is 30</p><p>　　Fig.2 FESEM and TEM photographs of the precursors of Bi2S3</p><p>　　Figure 3 for predict according to the above-mentioned result of the possible forming process of the

34、 vulcanized bismuth micron ring diagrammatic drawing.First, Bi(NO3)3 enter water solution to receive a biscuit-like in shape forerunner thing in 100℃ water thermal condition.Then, the sulfur ion ahead gets rid of an outs

35、ide layer of thing surface and bismuth ion the reaction forming Bi2S3 housings.Along with the progress for responding, the thickness of Bi2 S3 housingses enlarges gradually, inside </p><p>　　Fig.3 Schematic

36、illustration for the formation of Bi2S3 </p><p><b>　　Microring</b></p><p>　　2.3 The luminescence of the Na rice structure Bi2 S3</p><p>　　The size, facial look and cryst

37、alline degree etc. of Na rice material will effect the luminescence quality of material to some extent.[11–12] Bi2S3 micron rings and Na rice are good to measure while stiring up the wavelength as 325 nms of fluorescence

38、 spectrum.Can discover:2 kinds of outcomes all have more apparent fluorescence luminescence peak, the Bi2S3 micron ring luminescence peak is located in a 447 nm, the luminescence peak of the Na rice rod form Bi2S3 is loc

39、ated in a 470 nm, the Bi2S3 m</p><p>　　3. Conclusion</p><p>　　(1) With Bi(NO3)3H2O5 and Na2SH2O are raw materials, adopt two water thermal law, make from the average size about is the Na rice b

40、ore of grain construction but become with 100 nms for the 1~1.5 μm and external diameter for the quadrature of 1.5~2 μm crystal train Bi2S3 micron ring;Again with the Bi(NO3)35 H2O and sulfur Mao for raw material, adopt

41、one-step water thermal law, make a diameter about the 125 nm, length for the quadrature of 1~2 μm crystal train Bi2S3 Na rice rod.</p><p>　?。?）The facial look of outcome as to it's the fluorescence quali

42、ty contain important impact.The luminescence peak of Bi2S3 micron ring and Na rice rod-like in shape Bi2S3 is located in 447 nm and 470 nm respectively, Bi2 S3 micron ring's giving out light the location of peak is c

43、ompared to a Na rice rod the location of luminescence peak of the form Bi2S3 obviously took place the blue move, may be because constitute the Bi2S3 micron ring of Na rice grain opposite Bi2S3 Na rice rod the Cu has more

44、 </p><p>　　Reference:</p><p>　　[1] PENG X. Nanomechanical oscillations in a single-C60 transistor [J]. Nature, 2000, 407: 57–60. </p><p>　　[2]HU.α-Fe2O3 nanorings prepared by a micr

45、owave-assisted hydrothermal process and their sensing properties [J]. Adv Mater, 2007, 19(17): 2324–2330. </p><p>　　[3]KAMAT. Photoelectrochemical behavior of Bi2S3 nanoclusters and nanostructured thin films

46、 [J]. Langmuir, 1998, 14(12): 3236–3241. </p><p>　　[4] LIUFU. Assembly of one-dimensional nanorods into Bi2S3 films with enhanced thermoelectric transport properties [J]. Appl Phys Lett, 2007, 90(11): 112106

47、. </p><p>　　[5] LI. Topotactic transformation of single-crystalline precursor discs into disc-like Bi2S3 nanorod networks [J]. Adv Funct Mater, 2008, 18(8): 1194–1201. </p><p>　　[6]LI. Synthesis

48、 and electrical transport properties of single-crystal antimony sulfide nanowires [J]. J Phys Chem C, 2007, 111: 17131–17135. </p><p>　　[7]Shu Guang Chen Hong wei Liao The preparation and token of vulcanize

49、d bismuth(Bi2 S3) Na rice rod[J]. Nonferrous metal in Hunan, 2007, 23:(6) 33 – 35.</p><p>　　[8]LUDOVICO. Large-scale synthesis of ultrathin Bi2S3 necklace nanowires [J]. Angewandte Chem, Int Ed, 2008, 47(20

50、): 3814–3821. </p><p>　　[9]GU Guohua,.WANG Wei, Lü Weili, et al. Rare Met Mater Eng (in Chinese), 2007, 36: 108–111. </p><p>　　[10]ZHU Gangqiang, LIU Peng, ZHOU Jianping, et al. Chem J Chin

51、 Univ (in Chinese). 2008, 29(2): 240–243. </p><p>　　[11] TIAN Hongye, HE Rong, GU Hongchen. J Funct Mater (in Chinese), 2005, 36(10): 1564–1567.</p><p>　　[12] ZENG Huidan, QIU Jianrong, GAN Fuxi

52、, et al. J Chin Ceram Soc (in Chinese), 2003, 31(10): 974–980. </p><p>　　納米結(jié)構(gòu) Bi2S3的制備及其發(fā)光特性</p><p>　　張衛(wèi)新，邱 沫，張鈞君，楊則恒，陳 敏</p><p>　　(合肥工業(yè)大學(xué)化工學(xué)院，可控化學(xué)與材料化工安徽省重點(diǎn)實(shí)驗(yàn)室，合肥 230009)</

53、p><p>　　摘 要：以硝酸鉍和硫化鈉為原料，用兩步水熱法于100 ℃成功制備了正交晶系Bi2S3微米環(huán)；又以硝酸鉍和硫脲為原料，采用一步水熱法于150 ℃制備了同屬于正交晶系的Bi2S3納米棒。分別以X射線衍射儀、場(chǎng)發(fā)射掃描電鏡、透射電子顯微鏡和熒光分光光度法等測(cè)試手段對(duì)最終產(chǎn)物的物相、形貌和性質(zhì)進(jìn)行了表征，探討了Bi2S3 微米環(huán)的形成機(jī)理。結(jié)果表明：Bi2S3 微米環(huán)的內(nèi)徑為1～1.5μm、外徑為1.5～2

54、μm，由平均尺寸大約為 100nm的納米晶粒組裝而成。Bi2S3 納米棒的直徑約125nm、長(zhǎng)度為1～2μm。Bi2S3微米環(huán)和納米棒狀Bi2S3的發(fā)光峰分別位于447nm處和470nm處，Bi2S3微米環(huán)發(fā)光峰的位置相比于Bi2S3納米棒的發(fā)光峰位置明顯發(fā)生了藍(lán)移。</p><p>　　關(guān)鍵詞：硫化鉍；水熱法；納米結(jié)構(gòu)；光致發(fā)光</p><p>　　納米材料的性能不僅取決于其本身的結(jié)構(gòu)與

55、組成，而且還和材料的尺寸與形貌密切相關(guān)，因而對(duì)納米材料的尺寸、結(jié)構(gòu)、形貌進(jìn)行控制合成，進(jìn)而優(yōu)化材料性能，不僅具有重要的理論意義而且可拓寬納米材料的應(yīng)用領(lǐng)域，這已成為當(dāng)前合成化學(xué)與材料領(lǐng)域的一個(gè)前沿研究熱點(diǎn)，引起了研究人員的[1]廣泛興趣。 環(huán)狀結(jié)構(gòu)由于其中心具有很特殊的空穴而具有很多特殊的性質(zhì)。例如：Aizpurua 等研究發(fā)現(xiàn)金納米環(huán)中心的空穴內(nèi)具有很強(qiáng)的均勻磁場(chǎng)效應(yīng)，這使其在傳感以及光譜研究方面，可以作為共振納米空穴以支撐或者檢測(cè)其

56、他更小的納米結(jié)構(gòu)的物質(zhì)。[2]另外，Rothman 等研究發(fā)現(xiàn)磁性納米環(huán)材料在高密度磁存儲(chǔ)以及磁性隨機(jī)存取記憶方面也具有潛在的應(yīng)用性。[2] </p><p>　　硫化鉍(Bi2S3)是一種重要的半導(dǎo)體材料，它的能帶間隙為 1.2～1.7eV，在熱電、光電以及電化學(xué)[3–5]儲(chǔ)氫等方面具有潛在的應(yīng)用價(jià)值。近年來，納米結(jié)構(gòu)硫化鉍的合成引起了研究人員的廣泛關(guān)注。目前，在納米結(jié)構(gòu)硫化鉍方面有很多報(bào)道，主要有納米線[6

57、]、納米棒[7]、納米項(xiàng)鏈[8]以及盤狀[5]和玫瑰花狀[9]等組裝結(jié)構(gòu)。Li等[5]以氯化鉍在鹽酸水溶液中水解所得氯化氧鉍為前驅(qū)體，以硫代乙酰胺為硫源，在60℃常壓下制備出由直徑約 30nm，長(zhǎng)度為150～200nm的納米棒編織的平均直徑為2μm的薄盤狀硫化鉍。古國(guó)華等[9]以適量月桂酸硫脲咪唑啉季銨鹽為表面活性劑，以氯化鉍和硫代乙酰胺為原料，采用溶劑熱法制備出由片狀硫化鉍卷曲疊加的玫瑰花狀球形(直徑約 1μm)結(jié)構(gòu)。另外，也有少量關(guān)

58、于硫化鉍納米管的研究報(bào)道。例如，朱剛強(qiáng)等[10]以硝酸鉍和硫化鈉為反應(yīng)原料，采用水熱法在120℃下反應(yīng)12 h，制備了硫化鉍納米管。</p><p>　　實(shí)驗(yàn)以硝酸鉍和硫化鈉為原料，在未利用任何模板的條件下，采用兩步水熱合成法，成功地制備了硫化鉍微米環(huán)。探討了硫化鉍微米環(huán)的形成機(jī)理。為了在結(jié)構(gòu)、性能方面與所得到的硫化鉍微米環(huán)進(jìn)行比較，又采用一步水熱法制備了硫化鉍納米棒。比較了這兩種不同形貌硫化鉍的發(fā)光性質(zhì)。<

59、;/p><p><b>　　1 實(shí) 驗(yàn)</b></p><p><b>　　1.1 樣品的制備</b></p><p>　　實(shí)驗(yàn)所用原料為硫化鈉、無(wú)水乙醇、硝酸鉍、硫脲、十六烷基三甲基溴化銨和硫酸。以上試劑均為分析純國(guó)產(chǎn)化學(xué)試劑，實(shí)驗(yàn)用水為蒸餾水。</p><p>　　兩步水熱法制備 Bi2S3 微米環(huán)

60、的步驟如下：</p><p>　　第一步水熱：稱取 0.05g十六烷基三甲基溴化銨放入150mL 燒杯中并加入 40mL 蒸餾水，然后將燒杯放在磁力攪拌器上不斷地?cái)嚢枋?CTAB溶解完全。再稱取 0.2 g 硝酸鉍放入到燒杯中，繼續(xù)攪拌一定時(shí)間。然后將所得懸濁液轉(zhuǎn)移到內(nèi)襯為聚四氟乙烯的50mL 高壓釜中，再置于 100℃烘箱中恒溫 7h 后取出，自然冷卻，用蒸餾水多次洗滌沉淀物，即得前驅(qū)物。</p>

61、<p>　　第二步水熱：將上面所得前驅(qū)物放入盛有40mL 蒸餾水的燒杯中，然后將燒杯放在磁力攪拌器上不斷地?cái)嚢瑁儆靡埔汗芤迫∩倭咳芤簼舛葹?0.6mol/L 硫化鈉滴入燒杯中，繼續(xù)攪拌一定時(shí)間。將所得懸濁液轉(zhuǎn)移到內(nèi)襯為聚四氟乙烯的 50mL 高壓釜中，再置于 100 ℃烘箱中恒溫 4 h 后取出，自然冷卻，用蒸餾水多次洗滌沉淀物。</p><p>　　稀硫酸溶解：將上面所得沉淀物放入盛有 20mL

62、濃度為 2mol/L 稀硫酸溶液的燒杯中，室溫靜置約 8 h 后，用蒸餾水、無(wú)水乙醇多次洗滌沉淀物，將其在 60 ℃烘干，即得 Bi2S3 微米環(huán)。</p><p>　　一步水熱法制備 Bi2S3 納米棒的步驟如下：稱取0.1g硝酸鉍和0.2g硫脲放入150mL燒杯中并加入 40mL 蒸餾水，然后將燒杯放在磁力攪拌器上不斷地?cái)嚢?，得到黑色懸濁液。將此黑色懸濁液轉(zhuǎn)移到50 mL 高壓釜中并置于 150 ℃的烘箱中恒

63、溫 14 h 后取出，自然冷卻。用蒸餾水和無(wú)水乙醇多次洗滌沉淀物，樣品在60 ℃烘干，即得Bi2S3納米棒。</p><p>　　1.2 產(chǎn)物表征</p><p>　　用 D/max–rB型 X射線衍射儀對(duì)樣品進(jìn)行物相分析。以 Cu Kα為輻射源，λ=0.15418nm，管電壓為 40kV，管電流為 100mA，掃描范圍在 10～70°。用加速電壓為10 kV 的JEOL

64、7500B 型場(chǎng)發(fā)射掃描電鏡和加速電200kV的Hitachi–800 型透射電子顯微鏡表征樣品的形貌和結(jié)構(gòu)。用Hitachi F–4500 型熒光分光光度計(jì)，激發(fā)光源為Xe 燈，在室溫下測(cè)試樣品的熒光光譜。</p><p><b>　　2. 結(jié)果與討論</b></p><p>　　2.1產(chǎn)物的 XRD分析</p><p>　　圖 1 為兩步水

65、熱法與一步水熱法所得產(chǎn)物的XRD譜。圖 1 中的譜線1和譜線 2 分別為兩步水熱法和一步水熱法所得產(chǎn)物的 XRD 譜。均可指標(biāo)化為正交相 Bi2S3(JCPDF，No.06–0333)。兩步水熱法的反應(yīng)溫度為 100 ℃，一步水熱法在 150 ℃下進(jìn)行反應(yīng)。由圖 1 中可以看出：一步水熱法所得產(chǎn)物的衍射峰強(qiáng)度高于兩步水熱法所得產(chǎn)物。反應(yīng)溫度提高，樣品的衍射峰增強(qiáng)，半峰寬變窄，這說明隨反應(yīng)溫度升高，產(chǎn)物晶化程度提高。</p>

66、<p>　　2.2 Bi2S3微米環(huán)形成機(jī)理分析 </p><p>　　為了對(duì) Bi2S3微米環(huán)的形成機(jī)理進(jìn)行探索，利用FESEM和TEM觀察了第一步水熱制得的前驅(qū)物的形貌和結(jié)構(gòu)。圖2為Bi2S3微米環(huán)前驅(qū)物的FESEM和 TEM 照片。由圖2a 可見：前驅(qū)物由大量餅干狀圓片組成，其單個(gè)餅干狀圓片的直徑約為 1～2μm，厚度為 300～500nm。通過高倍 FESEM照片可以進(jìn)一步觀察到前驅(qū)物的圓形

67、餅干狀結(jié)構(gòu)(見圖2b)。圖2b 中左下角的插圖為前驅(qū)物側(cè)視圖的高倍 FESEM照片，可以看出圓形餅干是由很多納米圓片規(guī)則地疊加在一起而形成的多層結(jié)構(gòu)，納米圓片很薄，厚度為 25～50 nm。Bi2S3 微米環(huán)前驅(qū)物的 TEM 照片進(jìn)一步確定前驅(qū)物呈實(shí)心狀，直徑約 2 μm (見圖2c)。對(duì)比圖 2 可以看出：最終產(chǎn)物 Bi2S3與前驅(qū)物在直徑和厚度上基本保持了一致。</p><p>　　圖2 Bi2S3微米環(huán)前

68、驅(qū)物的FESEM和TEM照片</p><p>　　圖3為根據(jù)上述結(jié)果推斷的硫化鉍微米環(huán)的可能形成過程示意圖。首先，Bi(NO3)3 在 100 ℃水熱條件下水解得到餅干狀前驅(qū)物。然后，硫離子在前驅(qū)物外層表面與鉍離子反應(yīng)形成 Bi2S3 殼。隨著反應(yīng)的進(jìn)行，Bi2S3 殼的厚度逐漸增大，內(nèi)層的前驅(qū)物核不斷變小。由于溶液中硫離子是數(shù)量不足，反應(yīng)進(jìn)行一段時(shí)間后Bi2S3殼的厚度將由于硫離子的不足而停止增大，這樣就得到了

69、穩(wěn)定的前驅(qū)物核–Bi2S3殼狀結(jié)構(gòu)。最后，用 2 mol/L 稀硫酸水溶液將未反應(yīng)的前驅(qū)物核完全溶解，就形成了 Bi2S3 微米環(huán)。</p><p>　　圖3 Bi2S3微米環(huán)的形成示意圖</p><p>　　2.3 納米結(jié)構(gòu) Bi2S3 的發(fā)光 </p><p>　　納米材料的尺寸、形貌以及結(jié)晶程度等在一定程度上會(huì)影響材料的發(fā)光性質(zhì)。[11–12] Bi2S3微米

70、環(huán)與納米棒在激發(fā)波長(zhǎng)為325 nm 時(shí)測(cè)得的熒光光譜?？梢钥闯?種產(chǎn)物均具有較明顯的熒光發(fā)光峰，Bi2S3微米環(huán)發(fā)光峰位于447nm處，納米棒狀 Bi2S3 的發(fā)光峰位于 470nm處，Bi2S3微米環(huán)發(fā)光峰相比于納米棒狀 Bi2S3 的發(fā)光峰明顯發(fā)生了藍(lán)移。這可能是由于構(gòu)成 Bi2S3 微米環(huán)的納米晶粒相對(duì)Bi2S3 納米棒簇具有更明顯的尺寸效應(yīng)造成的。</p><p><b>　　3 結(jié) 論<

71、;/b></p><p>　　(1) 以 Bi(NO3)35H2O和Na2S H2O為原料，采用兩步水熱法，制備出由平均尺寸約為 100 nm 的納米晶粒組裝而成的內(nèi)徑為 1～1.5 μm、外徑為1.5～2 μm 的正交晶系 Bi2S3 微米環(huán)；又以Bi(NO3)35H2O和硫脲為原料，采用一步水熱法，制備出直徑125 nm、長(zhǎng)度為 1～2μm 的正交晶系Bi2S3 納米棒。</p><

72、p>　　(2) 產(chǎn)物的形貌對(duì)其熒光性質(zhì)有重要的影響。Bi2S3 微米環(huán)和納米棒狀 Bi2S3 的發(fā)光峰分別位于447nm處和 470nm處，Bi2S3微米環(huán)發(fā)光峰的位置相比于納米棒狀 Bi2S3的發(fā)光峰位置明顯發(fā)生了藍(lán)移，可能是由于構(gòu)成 Bi2S3微米環(huán)的納米晶粒相對(duì)Bi2S3納米棒簇具有更明顯的尺寸效應(yīng)。</p><p><b>　　參考文獻(xiàn)： </b></p><

73、;p>　　[1]PENG X. Nanomechanical oscillations in a single-C60 transistor [J]. Nature, 2000, 407: 57–60. </p><p>　　[2]HU. α-Fe2O3 nanorings prepared by a microwave-assisted hydrothermal process and their sen

74、sing properties [J]. Adv Mater, 2007, 19(17): 2324–2330. </p><p>　　[3] KAMAT. Photoelectrochemical behavior of Bi2S3 nanoclusters and nanostructured thin films [J]. Langmuir, 1998, 14(12): 3236–3241. </p&

75、gt;<p>　　[4]LIUFU. Assembly of one-dimensional nanorods into Bi2S3 films with enhanced thermoelectric transport properties [J]. Appl Phys Lett, 2007, 90(11): 112106. </p><p>　　[5]LI. Topotactic transf

76、ormation of single-crystalline precursor discs into disc-like Bi2S3 nanorod networks [J]. Adv Funct Mater, 2008, 18(8): 1194–1201. </p><p>　　[6]LI. Synthesis and electrical transport properties of single-cry

77、stal antimony sulfide nanowires [J]. J Phys Chem C, 2007, 111: 17131–17135. </p><p>　　[7]陳曙光, 廖紅衛(wèi). 硫化鉍(Bi2S3)納米棒的制備與表征[J]. 湖南有色金屬, 2007, 23(6): 33–35. </p><p>　　[8]LUDOVICO. Large-scale synthes

78、is of ultrathin Bi2S3 necklace nanowires [J]. Angewandte Chem, Int Ed, 2008, 47(20): 3814–3821. </p><p>　　[9]古國(guó)華, 王巍, 呂偉麗等. 玫瑰花狀Bi2S3的制備與表征[J]. 稀有金屬材料與工程, 2007, 36: 108–111. </p><p>　　[10]朱剛強(qiáng), 劉

79、鵬, 周劍平等. 水熱法合成 Bi2S3 納米管及其生長(zhǎng)機(jī)理[J]. 高等學(xué)校化學(xué)學(xué)報(bào), 2008, 29(2): 240–243. </p><p>　　[11]田紅葉, 賀蓉, 古宏晨. 不同溫度下硒化鎘(CdSe)量子點(diǎn)的生長(zhǎng)及熒光性研究[J]. 功能材料, 2005, 36(10): 1564–1567. </p><p>　　[12]曾惠丹, 邱建榮, 干福熹等. 納米功能顆粒